how to add user description to characteristic

[wim]

Hi

I am implementing my custom service, and started from the led/button example. I am using the LightBlue app on my iphone to connect to my device under test. I can see the characteristics for the LED and button, but would like to add some kind of human readable description string as the label of a characteristic. I though I could do this by replacing the char_md.pa_char_user_desc = NULL by a pointer to a static string in the adding of the LED characteristic, but no luck:

...

//char_md.p_char_user_desc  = NULL;

static char user_desc[] = "LED";
char_md.p_char_user_desc  = (uint8_t *) user_desc;
char_md.char_user_desc_size = strlen(user_desc);
char_md.char_user_desc_max_size = strlen(user_desc);	

...

Any ideas? Do I need to assign something to char_md.p_user_desc_md? And how can I add a characteristic descriptor in general?

[Hung Bui]

Hi Wim,

I don't see any problem with your code, it worked on my side. Could you double check ? You can just leave char_md.p_user_desc_md = NULL;

Which error do you have when running your code ?